Protease

/ˈproʊtiˌeɪs/ noun

Definition

An enzyme that breaks down proteins by cleaving peptide bonds between amino acids. Proteases are essential for many biological processes including digestion, blood clotting, and cellular regulation.

Etymology

From 'protein' + the suffix '-ase' indicating an enzyme. Coined in the early 20th century as biochemists began identifying and naming specific enzymes based on their substrates and functions.

Kelly Says

Proteases are among the most important enzymes in biology, involved in everything from digesting your breakfast to regulating cell death and immune responses. Many common medications, including some blood thinners and HIV treatments, work by inhibiting specific proteases.

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